电力需求侧空调负荷柔性调控策略研究

doi:10.16180/j.cnki.issn1007-7820.2021.08.010

Abstract

Abstract:

With the widespread use of air conditioning in various buildings, air conditioning load has become an important factor affecting the stable operation of regional power grids. If air conditioning load is not regulated, it will affect the normal electricity consumption of the entire area. Based on this, this study proposes an adaptive fuzzy PI three-closed-loop control strategy based on the framework of layered regulation of air-conditioning load areas. The method combines air-conditioning load information and fuzzy control, and flexibly regulates air-conditioning loads by forming a three-closed-loop PI control, and establishes a simulation model to verify the feasibility of the strategy. The simulation results show that the control accuracy of the control method can reach nearly 99%, which provides a new method for precise load control. The control strategy has been applied in a university, providing theoretical support and practical reference for the future promotion of flexible control technology.

Key words: air conditioning load, fuzzy adaptive control, three-closed-loop PI control, flexible control, demand response

CLC Number:

TP273

WANG Fuzhong,LI Runyu,ZHANG Hongwei,GUO Jiangzhen,ZHANG Li. Research on Flexible Load Control Strategy of Air Conditioning in Power Demand Side[J].Electronic Science and Technology, 2021, 34(8): 58-63.

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e	负荷状态
P(误差为正)	高(实际负荷大于期望荷)	ΔK_p取正,增大K_p。
Z(误差为0)	中(实际负荷等于期望负荷)	ec为N时,超调越来越大,ΔK_p 取负; ec为Z时,Δ K_p取正; ec为P时,正向误差越来越大,ΔK_p取正。
N(误差为负)	低(实际负荷小于期望负荷)	ΔK_p取负,降低K_p。

参数整定方法	超调量
经典Z-N法(单环)	0.215 0%
PSO整定(单环)	0.060 7%
传统三环整定	0.031 9%
模糊控制算法整定(三环)	0.025 8%

Research on Flexible Load Control Strategy of Air Conditioning in Power Demand Side

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ΔK_p		ec
ΔK_p		N	Z	P
	N	N	N	N
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ΔK_p		ec
ΔK_p		N	Z	P
	N	Z	Z	Z
e	Z	P	P	P
	P	Z	Z	Z